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The co-sanctioned tournament was reduced to three rounds due to bad weather, and the final day was also disrupted by storms.

Aphibarnrat had a one-shot lead after 15 holes when play was halted for two hours, but held his nerve after the resumption as he narrowly avoided a water hazard on 17 and and had to sink a 15-foot putt to par.

He was able to drop a shot at the last for the biggest victory of his career and a $458,330 first prize that put him top of the Asian Tour money list, with a 54-hole total of 13-under-par 203.

"During the suspension, I couldn't eat anything. I was so excited," said Aphibarnrat, who completed a second round of four-under 68 before closing with a 70.

"When I walked out, everything was shaking, even my voice. My caddy told me to just concentrate, just two more holes. I'm lucky that I played only 54 holes. Otherwise, I am so tired due to the weather and the golf course."

Molinari watched on, knowing that if he had earlier done better than par at 18 he would have been in a playoff.

The Italian had made the halfway cut for the first time in six starts this year since returning from a worrying wrist injury, and was pleased with the improvements he has made under new swing coach Sean Foley -- who also works with Tiger Woods.

"It's mixed emotions because I'm very happy to have a good week for the first time in a long time. The swing changes are starting to pay off, which is surprising because I thought it would take a lot longer," said the 32-year-old, who played on the 2010 Ryder Cup-winning team but has not claimed a European Tour title since earlier that season, when he triumphed twice.

"It's a hard week with being on and off the course the whole time," said Schwartzel, whose fellow South African Louis Oosthuizen won the tournament last year.

"It's difficult to find any rhythm. I feel like I swung the club pretty well, but I didn't play that well today."

Schwartzel was a runaway 11-shot winner at the Thai Golf Championship in December, where Aphibarnrat tied for sixth and Daly missed the cut, but this time he had to settle for a minor placing as Denmark's Anders Hansen fired 66 to claim third..

"For some reason I was hitting short irons all over the shop," Schwartzel said. "Kiradech did well. I would've liked to have applied a bit more pressure on him."